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The former "Today" show anchor announced her breast cancer diagnosis on Monday.

ABC News' Amy Robach announced on Monday morning that she has breast cancer and will undergo a double mastectomy later this week.

Robach received the tests results last week from an on-air mammogram performed on Oct. 1 for GMA Goes Pink Day. While the ABC News correspondent readies herself for a fight with cancer, she reminded viewers on "Good Morning America" on Monday that it was the mammogram that saved her life.